李新翰,栾龙发,张智宇,李祥龙,黄永辉
LI Xin-han,LUAN Long-fa,ZHANG Zhi-yu,LI Xiang-long,HUANG Yong-hui

• 1:昆明理工大学国土资源工程学院
• 2:昆明理工大学爆破新技术应用研究所

摘要(Abstract)：

介绍了城区45m高砖烟囱的控制爆破拆除。根据实践经验,合理选择爆破方案、爆破参数及防护措施。在没有按照常规方法对余留支撑体下部的烟道口进行封堵的前提下,对爆破切口采取一次性起爆。烟囱按照预先设计的方向倾斜、倒塌,倾倒过程中没有发生后坐现象,取得了较好的爆破效果,可为类似工程的设计与施工提供参考。
The demolition blasting of 45 m brick chimney by directional controlled blasting was introduced.According to practical experience,the blasting scheme,blasting parameters and protective measures were selected reasonably.All of the blastholes were initiated at the same time on condition that flue hole under the remained wall was not plugged as usual.Chimney collapsed in the direction designed and there was no back ward collapse occurring during the chimney collapse process.Good blasting effect was achieved,which can provide a reference for similar projects.

关键词(KeyWords)： 砖烟囱;控制爆破;拆除;后坐
Brick chimney;Controlled blasting;Demolition;Back ward collapse

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 李新翰,栾龙发,张智宇,李祥龙,黄永辉
LI Xin-han,LUAN Long-fa,ZHANG Zhi-yu,LI Xiang-long,HUANG Yong-hui

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